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Proxy Match and Replace

gu | Last updated: Feb 21, 2019 10:18AM UTC

hey ! im trying to add automatically "referer" header to intercepted http Request. for some reasons its not working, this is the filter i created in Match and Replace section : Type : Request header Match: ^Referer.*$ Replace: www.mywebsite.com note : the intercepted Request does not have "Referer" header , therefore i need to create one and not replacing the existing . thanks!

Liam, PortSwigger Agent | Last updated: Feb 21, 2019 11:09AM UTC

You can't change the message in Proxy History or Site Map as they are a record of the traffic that Burp observed. You could try running two instances of Burp and configure one instance as an upstream proxy with a match and replace rule making the desired changes: - https://support.portswigger.net/customer/portal/articles/2363078-burp-suite-options-upstream-proxy-servers Please let us know if you need any further assistance.

Burp User | Last updated: Feb 21, 2019 11:53AM UTC

hey again, this is what im trying to do! im using burp Proxy listener to intercept my HTTP request but i cant find a way to automatically change headers in the Request before forwarding it. if im doing it manually this works perfect but i want to do it for every Request and therefore im trying to know why the "Match and Replace" option does not work for me.

Liam, PortSwigger Agent | Last updated: Feb 21, 2019 01:17PM UTC

Have you tried testing the match and replace rule in Burp Repeater?

Nikolaos | Last updated: Feb 26, 2020 09:06PM UTC

Hi, you can use the "Custom Parameter Handler" plugin from the BApp shop. In this way you won't need 2 burp apps running. Keep in mind that the order of the plugin matters in some cases. If you are using Logger++ move it down on the list as the last item that you will load otherwise it might not show you correct info from the requests.

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